/*
 *  Axolotl - Alternate persistence for Grails
 *  Copyright (C) 2008  Juanjo García Latre
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package com.googlecode.axolotl.jpa.metaclass;

import groovy.lang.MissingMethodException;

import java.util.regex.Pattern;

import javax.persistence.EntityManagerFactory;

import org.codehaus.groovy.grails.commons.GrailsApplication;

import com.googlecode.axolotl.query.Query;


public class ListPersistentMethod extends AbstractStaticPersistentMethod {
	
    private static final Pattern METHOD_PATTERN = Pattern.compile("^_list$");
    private static final String METHOD_SIGNATURE = "_list";

    
    public ListPersistentMethod(EntityManagerFactory emf, GrailsApplication application) {
        super(emf, application, METHOD_PATTERN);
    }

    
    protected Object doInvokeInternal(final Class clazz, String methodName, Object[] arguments) {
    	if (arguments.length == 0) {
    		final Query query = new Query(clazz, null, null);
    		return getJpaTemplate().find( query.toString() );
    	}
    	throw new MissingMethodException(METHOD_SIGNATURE, clazz, arguments);
    }
    
}